In General:

Ambient guitar playing aims to create atmospheric, lush soundscapes that evoke a mood or environment. Unlike traditional guitar styles that focus on rhythm, melody, and chord progressions, ambient guitar is all about textures, effects, and tonal colors.

When selecting equipment for ambient guitar, it’s important to focus on tools that add depth and space to the sound rather than articulate rhythm. Effects like reverb, delay, and modulation are essential for sculpting ambiance.

Guitars and amps capable of clean, crisp tones allow the nuances of swelling, layered effects to come through. An ambient rig requires patience to dial in — create soundscapes by experimenting with effects combinations and guitar volume knob manipulation. The right equipment choices will transport listeners to an immersive sonic space.

Details:

Obviously, when you want to make music for this genera you need to focus on which Guitar/Amp but which effects to use might be the most important thing.
But to achieve the desired sound for ambient guitar music, you will need a combination of equipment such as an amp, pedals, and guitar. Here are some popular equipment options for ambient guitar:

Guitars:

Solid-body electric guitars work well for ambient playing. Recommend Fender Stratocaster or Telecaster, Gibson Les Paul.
Effects like chorus, reverb, and delay are crucial for ambient tones so guitars with onboard effects may be useful. Explain different guitar models with built-in effects.

-John Petrucci guitars by Music Man, Fender Strats, and Teles, and Ibanez 6-string solid body electric guitars.
– Les Paul guitars with humbuckers or P-90s are also used for ambient music

Amps:

Ambient guitar tones require amps capable of clean tones with headroom. Recommend Fender Twin Reverb, Roland JC-40 Stereo Jazz Chorus, Vox AC30.
Most ambient playing involves effects processing so amp distortion is not as important. Discuss amps with simple controls vs amp modeling options.

– Fender Bandmaster/Bassman/Showman or a Twin
– Roland Jazz Chorus

Effects Pedals:

Reverb and delay pedals are essential for ambient playing. we like  TC Electronic Hall of Fame reverb, Boss DD delay pedals.
Modulation like chorus, flanger, and phaser help create textures such as
Boss CE-2 chorus, MXR phase 90.
Volume/expression pedals allow real-time swells. Ernie Ball volume pedal.
creating an effects loop with reverb/delay at the end.

Also Strymon pedals, are known for exceptional quality, crystal clarity, and versatility.
Just about anything from Boss, Zoom, Walrus Audio, Donner, Keeley Caverns, Caline, Joyo, Wampler, and JHS pedals.
The ZOIA and Old Blood Noise Endeavors Sunlight Reverb are some of the best ambient guitar pedals available in the market.

Accessories:

Ambient playing involves complex pedalboards so recommend pedalboard real estate and power supplies.
Volume pedal placement and using tap tempo switches for delay pedals.
Good cables prevent signal loss over complex signal chains.

Ebow:

One piece of equipment that many ambient guitarists use is called the EBow, which can sustain a note on the guitar the way a bow can sustain a note on other string instruments, such as a violin